Question

3x + 5 =4

Answer 1

3x+5=4
-5 -5
__________________________________
3x=-1

x=?

Answer 2

Do you have it?

Answer 3

Solving an equation of this type is to show
x = some number.
In order to do that, you need to undo to x what those operations are doing.
x is being multiplied by 3, and then 5 is being added to that product.
First you need to undo the +5 by subtrating the 5 from both sides.
Then you divide both side by 3

3x + 5 = 4
-5 -5
-------------
3x = -1
Now divide both sides by 3
x = -1/3